<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide
        v-for="(page,index) of pages"
        :key="index">
        <div
          class="icon"
          v-for="item of page"
          :key="item.id">
          <div class="icon-img">
            <img class="icon-img-content"
                 :src="item.imgUrl"
                 alt=""></div>
          <p class="icon-desc">{{item.desc}}</p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
  export default {
    name: 'HomeIcons',
    props: {
      list: Array
    },
    data: function () {
      return {
        swiperOption: {
          autoplay: false
        },
      }
    },
    computed: {
      pages: function () {
        const pages = []
        this.list.forEach((item, index) => {
          const page = Math.floor(index / 8)
          if (!pages[page]) {
            pages[page] = []
          }
          pages[page].push(item)
        })
        console.log(pages)
        return pages
      }
    }
  }
</script>

<style lang="stylus" scoped>

  .icons
    height 0
    overflow hidden
    padding-bottom 50%

  .icon
    position relative
    width: 25%
    float: left
    padding-bottom: 25%
    overflow hidden
    height: 0

    .icon-img
      position: absolute
      top: 0
      left: 0
      right: 0
      bottom: .44rem
      box-sizing border-box
      padding .1rem

      .icon-img-content
        display block
        margin 0 auto
        height: 100%

    .icon-desc
      position: absolute
      left: 0
      right: 0
      bottom: 0
      line-height .44rem
      color #333333
      text-align center
      /*文字过长溢出*/
      overflow hidden
      white-space nowrap
      text-overflow ellipsis
</style>
